[Pkg-xfce-devel] Bug#735265: Bug#735251: lightdm: user locale tweaks are clobbered by non-default locale

[Simon Pepping]

On Tue, Jan 14, 2014 at 05:56:32PM +0100, Yves-Alexis Perez wrote:
> Note: I'm replying to both bugs at once because they look quite the
> same. I'm not merging them right now because that's not completely sure
> either.
 
The .xsessionrc problem is shared by both. I use the language
selector. It is not clear whether the other bug report does so.
 
> In the end, I'm pretty confused by those two bug reports. It seems that
> people are indeed confused by the lightdm/lightdm-gtk-greeter behavior
> wrt. locales, but the reports I get are merely adding confusion, not
> helping to reduce it.

Indeed, the two reports seem to contradict each other in some respects.
 
> In order to detect issues in LightDM/lightdm-gtk greeter, it'd help to:
> 
> - not set anything locale related in .xsessionrc (since it'll just
>   override whatever lightdm set)
> - provide the full output of `locales' (and maybe the content of
>   $LANGUAGE too)

Trying to do that; this is my report:

/etc/default/locale:

#  File generated by update-locale
LANG=nl_NL.UTF-8
#LANGUAGE="en_GB:en"

locale -a:

C
C.UTF-8
en_US.utf8
nl_NL.utf8
POSIX

locale (in the terminal shell, no X; this is the system-wide locale):

LANG=nl_NL.UTF-8
LANGUAGE=
LC_CTYPE="nl_NL.UTF-8"
LC_NUMERIC="nl_NL.UTF-8"
LC_TIME="nl_NL.UTF-8"
LC_COLLATE="nl_NL.UTF-8"
LC_MONETARY="nl_NL.UTF-8"
LC_MESSAGES="nl_NL.UTF-8"
LC_PAPER="nl_NL.UTF-8"
LC_NAME="nl_NL.UTF-8"
LC_ADDRESS="nl_NL.UTF-8"
LC_TELEPHONE="nl_NL.UTF-8"
LC_MEASUREMENT="nl_NL.UTF-8"
LC_IDENTIFICATION="nl_NL.UTF-8"
LC_ALL=

Session selection in lightdm greeter: xfce-session. Upon logout I do
not save the session.

The locales below were obtained in emacs in XFCE, thus excluding bash
startup files, even though these do not contain locale settings.

The following tests were done without ~/.xsessionrc.

Test 1. Log in without changing the language in the language selector:

locale (this is the system-wide locale):

LANG=nl_NL.utf8
LANGUAGE=
LC_CTYPE="nl_NL.utf8"
LC_NUMERIC="nl_NL.utf8"
LC_TIME="nl_NL.utf8"
LC_COLLATE="nl_NL.utf8"
LC_MONETARY="nl_NL.utf8"
LC_MESSAGES="nl_NL.utf8"
LC_PAPER="nl_NL.utf8"
LC_NAME="nl_NL.utf8"
LC_ADDRESS="nl_NL.utf8"
LC_TELEPHONE="nl_NL.utf8"
LC_MEASUREMENT="nl_NL.utf8"
LC_IDENTIFICATION="nl_NL.utf8"
LC_ALL=

~/.dmrc:

[Desktop]
Language=nl_NL.utf8
Session=xfce

Test 2. Log in with changing the language in the language selector to
english - USA:

locale:

LANG=en_US.utf8
LANGUAGE=
LC_CTYPE="en_US.utf8"
LC_NUMERIC="en_US.utf8"
LC_TIME="en_US.utf8"
LC_COLLATE="en_US.utf8"
LC_MONETARY="en_US.utf8"
LC_MESSAGES="en_US.utf8"
LC_PAPER="en_US.utf8"
LC_NAME="en_US.utf8"
LC_ADDRESS="en_US.utf8"
LC_TELEPHONE="en_US.utf8"
LC_MEASUREMENT="en_US.utf8"
LC_IDENTIFICATION="en_US.utf8"
LC_ALL=

~/.dmrc

[Desktop]
Language=en_US.utf8
Session=xfce

Test 3. Log in without changing the language in the language selector:

locale:

LANG=nl_NL.utf8
LANGUAGE=
LC_CTYPE="nl_NL.utf8"
LC_NUMERIC="nl_NL.utf8"
LC_TIME="nl_NL.utf8"
LC_COLLATE="nl_NL.utf8"
LC_MONETARY="nl_NL.utf8"
LC_MESSAGES="nl_NL.utf8"
LC_PAPER="nl_NL.utf8"
LC_NAME="nl_NL.utf8"
LC_ADDRESS="nl_NL.utf8"
LC_TELEPHONE="nl_NL.utf8"
LC_MEASUREMENT="nl_NL.utf8"
LC_IDENTIFICATION="nl_NL.utf8"
LC_ALL=

~/.dmrc:

[Desktop]
Language=nl_NL.utf8
Session=xfce

Test 4. Log in with changing the language in the language selector to
english - USA (just to select english for the next test):

locale:

LANG=en_US.utf8
LANGUAGE=
LC_CTYPE="en_US.utf8"
LC_NUMERIC="en_US.utf8"
LC_TIME="en_US.utf8"
LC_COLLATE="en_US.utf8"
LC_MONETARY="en_US.utf8"
LC_MESSAGES="en_US.utf8"
LC_PAPER="en_US.utf8"
LC_NAME="en_US.utf8"
LC_ADDRESS="en_US.utf8"
LC_TELEPHONE="en_US.utf8"
LC_MEASUREMENT="en_US.utf8"
LC_IDENTIFICATION="en_US.utf8"
LC_ALL=

~/.dmrc:

[Desktop]
Language=en_US.utf8
Session=xfce

Test 5:

Restore ~/xsessionrc:

# . /etc/profile
# . ~/.bash_profile

LANG="en_US.UTF-8"
export LC_MONETARY="nl_NL.UTF-8"
export LC_PAPER="nl_NL.UTF-8"
export LC_MEASUREMENT="nl_NL.UTF-8"
export LC_TIME="nl_NL.UTF-8"
export LC_NAME="nl_NL.UTF-8"
export LC_ADDRESS="nl_NL.UTF-8"
export LC_TELEPHONE="nl_NL.UTF-8"
export LC_IDENTIFICATION="nl_NL.UTF-8"
export LANGUAGE=en

Log in without changing the language in the language selector:

LANG=nl_NL.utf8
LANGUAGE=en
LC_CTYPE="nl_NL.utf8"
LC_NUMERIC="nl_NL.utf8"
LC_TIME=nl_NL.UTF-8
LC_COLLATE="nl_NL.utf8"
LC_MONETARY=nl_NL.UTF-8
LC_MESSAGES="nl_NL.utf8"
LC_PAPER=nl_NL.UTF-8
LC_NAME=nl_NL.UTF-8
LC_ADDRESS=nl_NL.UTF-8
LC_TELEPHONE=nl_NL.UTF-8
LC_MEASUREMENT=nl_NL.UTF-8
LC_IDENTIFICATION=nl_NL.UTF-8
LC_ALL=

~/.dmrc:

[Desktop]
Language=nl_NL.utf8
Session=xfce

Snippet from ~/.xsession-errors from this session (probably unrelated):

Xsession: X session started for simon at di jan 14 20:16:10 CET 2014

(xfce4-session:11083): xfce4-session-WARNING **: Unable to launch "update-notifier" (specified by autostart/update-notifier.desktop): Failed to execute child process "update-notifier" (No such file or directory)

>From the process list of this session:

 2554 ?        SLl    0:00 /usr/sbin/lightdm
10968 tty7     Ss+    0:17  \_ /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
11000 ?        Sl     0:00  \_ lightdm --session-child 12 71
11020 ?        Ss     0:00      \_ /bin/sh /etc/xdg/xfce4/xinitrc -- /etc/X11/xinit/xserverrc